UL 489
MA- Series
Three Phase Adjustable Trip
Miniature Circuit Breakers/
Manual Motor Controllers
UL508 listed
E137938
CAN/CSA-C22.2 No.14 certified
UL 1077
Equipment Breakers
The MA was designed to handle the high
inrush loads of 3 phase transformers,
power supplies, motors, etc. The MA
protects wiring and equipment from
damage caused by the three major
classes of over-current, yet greatly reduc-
es the number of nuisance trips in high
Type Designation
starting and inrush current circuits.
MA
U
M
____ 16
__
__
__
An IEC device with excellent ratings under
(a)
(b) (c) (d)
a UL listing at 480Y/277V (including group
ratings) and at 500V under international
(a)
= MA - Manual Motor Controller
standards, the Altech/ABL Sursum MA
(b)
= Rated Current
provides short and long term cost effective
(c)
= U - US Housing
circuit protection for USA and/or export
= R - US Housing + Ring Tongue
applications. The short term advantages
include: (1) adjustable thermal trip allows
(d)
= M - Part No. Designation
finalization of initial designs before
480Y/277V AC
procurement of the load equipment is
Voltage Rating
complete; (2) snap-on mounting for readily
AIC (Interrupt Capacity)
0.16A-2.5A: 42kA; 4.0A-16A: 14kA; 20A-40A: 10kA
available, internationally standardized DIN
Rail saves panel layout design time as well
Standard Short Circuit Withstand Rating
0.16A-2.5A: 42kA; 4.0A-16A: 14kA; 20A-40A: 10kA
as installation and change labor; (3) large
(UL/CSA Ratings)
see above
cage-clamp terminals with screws suitable
Group Short Circuit Ratings
to power screwdrivers, simplifies and
(UL/CSA Ratings)
speeds wiring; (4) convenient switched
Typical Life
6000 on/off operations with 2xRC
disconnect during factory testing and/or
25°C, +0°, -5° (77°F, +0° -9°)
initial start-up saves time and aggravation.
Calibration Temperature
1/450g (1.0 lb.)
The key long term advantage is customer
Standard Pack and Weight
satisfaction and proven over-current pro-
Terminal Size Acceptability
Top/Bottom: 18-3 AWG
tection of wiring and equipment (and the
Terminal Torque (min/max)
2 Nm (17.7 lb.in.) / 2.5Nm (22.2 lb.in)
lack of rework/repair costs).
FLA Dial
Adjustment
Markings
0.1/ 0.12/0.14/0.16
0.16/0.19/0.22/0.25
0.25/0.30/0.35/0.40
0.40/0.48/0.56/0.63
0.63/0.75/0.87/1.0
1.0/1.2/1.4/1.6
1.6/1.9/2.2/2.5
2.5/3.0/3.5/4.0
4.0/4.8/5.6/6.3
6.3/7.5/8.7/10
10/12/14/16
16/17/18.5/20
20/21.5/23/25
25/27/30/32
32/34/37/40
14kA
RMS
symmetrical
(max. 350A
MCCB
or RK5)
10kA
RMS
symmetrical
(max. 350A
MCCB
or RK5)
1/2 (4.0)
3/4 (5.6)
1
2
3
3
5
5
(7.2)
(13.6)
(19.2)
(19.2)
(30.4)
(30.4)
3/4 (3.2)
1
1/2
(6.0)
2
(7.8)
3 (11.0)
5 (17.5)
5 (17.5)
7
1/2
(25.0)
10 (32.0)
3/4
1
1/2
2
3
5
7
1/2
7
1/2
10
(3.1)
(5.7)
(7.5)
(10.6)
(16.7)
(24.2)
(24.2)
(31.0)
1
1
1/2
3
5
5
7
1/2
10
10
(3.6)
(5.2)
(9.6)
(15.2)
(15.2)
(22.0)
(28.0)
(28.0)
2
3
5
10
10
15
20
25
(3.42)
(4.8)
(7.6)
(14.0)
(14.0)
(21.0)
(27.0)
(34.0)
42kA
rMS
symmetrical
(max. 1200A
MCCB
or RK5)
Through MA2.5U, ampere rated for motor circuits having a full-
load-amperage (FLA) not exceeding the MA’s general purpose
rated current (RC, equals maximum dial setting) and a locked
rotor current not exceeding 6 times the MA’s RC.
GROUP SHORT
CIRCUIT RATING
AT 480VAC
a
(and BCP size)
3Ø HORSEPOWER RATINGS AT NOMINAL LINE VOLTAGE
(See Note for HEA Definition)
110-120V
HP (HEA)
200V
HP (HEA)
208V
HP (HEA)
220-240V
HP (HEA)
460-480V
HP (HEA)
UL 1077
UL 508
Cat. No.
MA016UM
MA025UM
Rated
Current
0.16A
0.25A
0.40A
0.63A
1.0A
1.6A
2.5A
4.0A
6.3A
10A
16A
20A
25A
32A
40A
Earth Leakage
Circuit Breakers
ANNEX
48
MA040UM
MA063UM
MA1.0UM
MA1.6UM
MA2.5UM
MA4.0UM
MA6.3UM
MA10UM
MA16UM
MA20UM
MA25UM
MA32UM
MA40UM
Note:
HEA - Horsepower Equivalent Amperes,
the nominal amperage assigned to standard motor horsepower ratings in design guide tables such as
NFPA-70 Tables 430-248, 430-249, 430-250; UL1077 Table 16.2; CSA - C22.2 No. 235-M89 Tables 44 and 45; CSA-C22.2 No. 14-M91 Table 19, etc. Multiply
HEA values (in parenthesis) by 1.1 if power factor is 90%, and by 1.2 if power factor is 80%.
a The standard-circuit short-circuit rating is 14kA for all types. Group ratings can be used in a standard circuit (e.g., MA1.0U at 42kA), but a higher
standard rating cannot be used in a group circuit (e.g., MA40U at 14kA only in standard circuit.)
Altech Corp.
®
• 35 Royal Road • Flemington, NJ 08822-6000 • P 908.806-9400 • F 908.806.9490 • www.altechcorp.com
UL 489
UM (V-EA) and MA Accessories
For mounting instructions please refer to page 43.
C
US
UL Listed
E137938
Auxiliary Contact, Alarm Switch
Type/ Cat No.
Description
Contacts Type
Std Pk
6
6
6
6
6
17.7 mm
87 mm
52.7 mm
UL 508
Rated Operating
Currents
Minimum Contact Load
Torque
Wire Range:
Single Wire
Stranded Wire
Stranded Wire
with Ferrule
10A@240V AC
3A@110V DC
1A@220V DC
1mA @ 24V DC
max. 0.8Nm (7 lb.in)
1.0mm² - 2.5mm² (18-14 AWG)
1.0mm² - 1.5mm² (18-16 AWG)
1.0mm² - 1.5mm² (18-16 AWG)
6 mm
8.8 mm
63.8 mm
Dimensions HxxUM.
UL 1077
68.4 mm
9 mm
Shunt Trip
Type/ Cat No. Rated Voltage U
N
Max. Operating
Current @ U
N
1.3A
0.6A
0.2A
0.25A @ 110V
0.5A @ 240V
0.58A @ 277V
Std Pk
5
5
5
5
88 mm
43.8 mm
UL 1077
Equipment Breakers
FA12UM
FA24UM
FA48UM
FA110UM
12V AC/DC
24V AC/DC
48 - 72V AC/DC
110 - 240V AC/DC,
277V AC
63.8 mm
12.4 mm
6 mm
Dimensions HLS11M.
21.8 mm
Earth Leakage
Circuit Breakers
Undervoltage Trip*
Type/ Cat No.
UA120UM
Line Voltage V
E
120V AC, 60Hz
Std Pk
89.5 mm
5
ca. 180-200
43.6 mm
68.4 mm
AWG 23
45 mm
45 mm
45 mm
Reset-Hold Voltage = 0.85 x V
E
Drop-Out Voltage = 0.35 ~ 0.7 x V
E
V
E = Rated Voltage
6 mm
17.5 mm
Dimensions UA120UM.
ANNEX
* Not UL approved.
** UM (V-EA) and MA can also be locked in the on and off position by simply
using a common lead or meter seal, which gets fed through the hole in the
handle and a corresponding hole in the housing.
50
Altech Corp.
®
• 35 Royal Road • Flemington, NJ 08822-6000 • P 908.806-9400 • F 908.806.9490 • www.altechcorp.com
45 mm
H10UM
1 Auxiliary Contact
1NO
H11UM
2 Auxiliary Contacts
1NO + 1NC
H12UM
3 Auxiliary Contacts
1NO + 2NC
H21UM
3 Auxiliary Contacts
2NO + 1NC
HLS11M* 1 Auxiliary/1 Signal Contacts 1CO + 1CO (Signal)
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